I haven't shot my R9 for awhile so today while I was at the range with my HK45 I took the R9 with me. Since the new mag springs I haven't had a single problem so this time I decided to try something other than Gold Dots. I fired a couple mags of 124gr golden Sabers and a couple mags of Federal 124gr HST. No problems. The HST's were definitely more snappy than the Golden Sabers.
So that's now 5 or 6 range trips and 80 rounds without a problem. And the fact that it digested something other than the normal Gold Dots is very satisfying. I'm quite happy with the little guy these days.